Nason's Slug Moth

Nason's Slug Moth

Natada nasoni

Daily sighting probability <5% · Rare
at Washington

In 3 days ~10%

8 Verified sightings at Washington
25 In all 2 parks From 2019 to 2026
June Best month
☀️🌙 Day & Night When it's spotted

About the Nason's Slug Moth

Natada nasoni, Nason's slug or Nason's slug moth, is a moth of the family Limacodidae. It is found in the United States from Missouri to the Atlantic coast and south to the Gulf of Mexico. The larvae feed on various smooth-leaved woody plants, including beech, hickory and hornbeam. They are adorned with stinging spines. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Great Smoky Mountains National Park 🇺🇸 United States
~10%
2 Shenandoah National Park 🇺🇸 United States
~10%

Cities Where Found

# City Country Daily sighting probability
1 Washington 🇺🇸 United States
<5%

Before you go

What are the chances of seeing a Nason's Slug Moth in Washington?

Rare

Under 5% of wildlife watchers report a Nason's Slug Moth sighting in Washington on a given day, based on 8 verified sightings from GBIF citizen-science data. It is the 1649th most-seen of the 1807 insects we can rate there. Over three days the chance rises to about 10%, if each day is a fresh chance.

When is the best time to see a Nason's Slug Moth in Washington?

Any time of year

In every month with enough records, under 5% of wildlife watchers report a Nason's Slug Moth in Washington on a given day, so our monthly data shows no clear season.

What time of day is best to see a Nason's Slug Moth?

Between 9 pm and midnight

Across all the parks we cover, that three-hour window holds the most Nason's Slug Moth sightings with a recorded time, and about 6 in 10 of them come between 6 pm and 6 am: it is seen both by day and at night.

Where else can you see a Nason's Slug Moth?

Only Washington, in our data

Washington is the only city on Wallace's Line with enough records to rate Nason's Slug Moth sightings: under 5% of wildlife watchers there report one on a given day.

Where does the Nason's Slug Moth sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Nason's Slug Moth is recorded against all the insects logged in Washington (8 verified sightings), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.

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